Water-closet



(No Model.)

P. HARVEY.'

. Y WATER GLosET. y

No. 349,348. Patented Sept. 21, 1886.

UNITED STATES PATENT Carica.

PATRICK HARVEY, OF CHICAGO, ILLTNOIS.

'WATER-CLOSET.:

` SPBCFICATION 'forming part of Letters Patent No. 349,348, dated September 21, 1886.

Application filed March 18. 1886.

To alla/hom it may concern.-

Be itknown that I, PATRICK HARVEY, a citi- `zen of the United States, residing at Chicago,

in the county of Cook and State of Illinois, have invented certain new and useful Improvements in WaterClosets, which are fully set forth in the following specification.

The purpose of this invention is to provide a water-closet whose discharge-duct constitutes a Siphon, with a simpler means than any heretofore employed for producinga vacuum, whole or partial, in the siphon, by which means the same shall be charged and become operative as a Siphon, and effect theI evacuation of the bowl.

It consists in providing awater-duct, which is preferably a branch of the flushing pipe or duct, but which terminates in an annular mouth within the soil-pipe encircling the discharge-limb of the Siphon, whereby the air- Space in the Siphon above the mouth-that is to say, beyond the trap-is partially evacuated Y by the suction of the current of water flowing the Siphon.

in a cylindrical or inverted conical stream past the mouth of the Siphon. The chief difference between this construction and others having a similar purpose is that no trap o r valve is employed beyond the siphon, as is necessary when the air-space is exhausted by any means which withdraws the air in a direction counter to the outflowing stream from the discharge-limb of In the drawings,Figure 1 is a transverse vertical section of a water-closet bowl and its discharge and flushing pipes and supply-tank. Fig. 2 is a vertical section of a detail of said structure, showing an alternative form of theV adj usting device by which the annular aperture. through which the Siphon-evacuating stream is discharged may be regulated.

A is the bowl. l

A is the dischargwduct, of siphonic form, A10 being the receiving-limb, and A11 being the discharge-limb. rlhe trap, formed by the bowl and the receiving-limb of the siphonic discharge-duct, is designated by the letter a.

B is the water-pipefrom the tank or other source of supply. B is the branch of said pipe B, which leads to the ilushing-rim of the bowl, and constitutes the flushing-pipe. B`l

is a branch of the Said pipe B, which leads into the annular chamber B2, which encircles the Serial No. 195,653. (No model.)

discharge-mouth of the siphon A, and constitutes the mouth of the said pipe B2.

C is the soil-pipe; c, the Ventilating-duct therefrom.

E is the tank; E', the service-box.

F is the supply-pipe; F', the dischargecock, regulated in the usual manner by the float F2.

G is the valve which controls the flow from the tank into the service-box, and is operated in any familiar manner. The pipe'B stands up a short distance into the 'service-box, but has an opening or openings, bl", into it at the bottom of said box; but said openings are of less total area than the mouth or cross-Section of said pipe, and admit less water than can enter through the mouth. These openings serve to admit the after-wash, the total quantity of which is determined by the height to which said pipe is protrnded above the bottom. The branch B2 ofthe pipe B makes junction with said pipe by the goose-neck b2, opening into said pipe B on the upper side of the horizontal portion b. At said junction, in a suitable chamber arranged to allow it proper play, is the check-valvc H, which is preferably light enough to be lifted from its Seat by the water when the current fills the pipe B. Said valve opens outward from the pipe B, but will be seated b'y any back-pressure coming through thepipe B2, and is normally seated by gravity whenever the water is insufficient to keep it full-that is, when it will all be carried off through pipe B.

The operation of this device is as follows: When the water is admitted to the pipe B in full volume aportion passes through B to the lflushing-rim and into the bowl, and the remainder vpasses by the check-valve H through the pipe B2, and is discharged in a conical stream about the lower end of the discharge limb Au of the siphonic discharge-duct A. The action of this conical stream tends to draw air with it from the said Siphon, and rarefy the air thereinbeyond the trap a, and thereby, with the assistance of the stream entering the bowl through B and passing out through the trap a into the discharge -limb A of the Siphon, to cause the Siphon to become filled or primed7 The siphonic action of the duct A will cause the bowl to be evacuated down to the line w w as Soon as the supply of water in the ICO service-box falls below the mouth of the pipe B, the quantity of water passing into said pipe being limited to that which the apertures will admit, is insufficient to furnish any water to the pipe B2, and the water atthat instant in the siphon having passed outthe siphon is broken7 by the admission of air at the line x af, and the water entering through the orifices, passing through pipe B into the bowl, fills it up again to the original level a v. It will be noticed that to insure perfect action the pipe B should be large enough to fully supply both B and B2; also, that pipe B2 should have an area in cross-section equal to that of the annulus B2", so that enough water may be admitted through said pipe B2 to completely charge the annulus and form a complete and unbroken will not usually require such packing.

conical sheet of water discharging around the mouth of the limb A of the siphon. rlhe swiftness of the current of water which discharges through said annulus will affect quite materially its capacity to draw air from the siphon, and when its speed is great its quautity may be proportionately less. Its speed will depend upon the height of the service box or tank above the closet. In order, therefore, that a plumber in setting up the closet may arrange it so as to require the least quantity of water which will operate it, there is provided an adjustable mouthpiece, A, for the discharge-limb A of the siphon,which may be screwed toward and from the opposed entrance into the soilpipe C to vary the aperture through which the conical air-drawing stream is discharged. Such adj ustablc mouth-piece is preferablyinterior to the duct A, and a handhole closed bythe cap u is provided at the top of the siphon, through which a screwdriver may be inserted to engage the notches a a in the upper edge of said mouth-piece to screw it up or down. Such mouth-piece mayv be arranged exterior to the discharge-limb A and interior to the annulus B20 and threaded both exteriorly and interiorly, and provided with a wrench-receiving rim at the upper end, whereby it may be adjusted. Such form is illustrated in Fig. 2. In this form packing nuts and washers a and m may be employed, if found necessary, to prevent leakage about the threads; but inasmuch as the adjustment need never be changed after the closet is set, unless the pressure of the water in pipe B2 is changed, said adjustable mouth-piece, once properly set and the jointsleaded water-tight, I do not claim the said adjustable mouth-piece, broadly, because I have shown and claimed the samein my application No. 180,253, filed October 1l. 1885. rIhe Ventilating pipe c should be connected into the soil-pipe as near as it can conveniently be beyond the point at which the siphon and water-duct unitedly discharge, for the reason that the air drawn from the siphon by the water-current tends to become separated from the water and to float up again into the siphon, unless it finds an earlier or easier exit.

One advantage of the method herein illustrated of withdrawing the air from thesiphon from the discharge end, instead of taking it from any point higher than the upper side of the trap, (thcline a' a3) is that when the usual water-supply through the water-pipe from the tank is not available, so that it becomes neecssary to flush the bowl by pouring water directly into it, the bowl being filled quickly up to the line jl/ y, the level of the top of the siphon, the siphon will be filled and primed by the overliow, andthe bowl will then be evacuated down to the line a' fr, as when the operation takes place through the usual means-the tank and connecting-pipes.

I do not claim, broadly, the use of thepipe B, protruding up into the tank and having apertures below its mouth for the purpose of furnishing two washes of different quantity to the bowl, since I am aware that such construction has been heretofore employed by others.

I claim-v 1. In combination with the bowl, the si phonic evacnatingduet, and a w'ateupipe terminating ina ehalnber, which snrron nds the discharge end of the siphon, said chamber and siphon both discharging into the soil-1' ipe,snb stantially as set forth.

2. In combination with the bowl, the siphonic evacuating-dnct, a water-snpply pipe having one branch discharging in the bowl and another branch terminating in a chamber, which surrounds the discharge end of the si phon, said siphon and duct both discharging into the soil-pipe,substantially as set forth.

8. In combination with the bowl, the siphonie evacuating-duct,a water-pipe discharging into the soil-pipe around the discharge end of the siphon, and a check-valve in such water-pipe opening with the current toward the soil-pipe and seating in the reverse direction to check back-pressure from the soil-pipc,sul stantially as set forth.

4. In combination with the bowl, its evacuatingsiphon discharging in the soil-pipc, a water-pipe discharging inthe soilpipe around the discharge end of the siphon, and a ventilating-pipe leading from the soil-pipe beyond the entrance thereinto of said siphon and water-pipe, substantially as set forth.

5. In combination with the bowl and its evacuati11g-siphon, a water-pipe having one branch leading to the bowl to flush the salue, and another branch leadingto and discharging about the end of the discharge-limb of the siphon, and a cheek-valve in thelatterlnaneh seating toward the said main water-pipe to cut ofi back-pressure from the sewer, substantially as set forth.

6. In combination with the bowl, thesiphonic evacuating-duct,'a water-pipe having one branch leading to the lushinga'ini ofthebowl and another branch opening out of it upward and then turning downward and discharging around the discharge end ofthe siphon to exhaust the air therefrom, substantially as set forth.

PSO

7 In combination with the servicebox,the pipe receiving water therefrom at two levels, the apertures at thelower level being less than suicient to supply the pipe to its full capacity,

5 thebowl,itssiphonieevacnating-duet,a branch fromtbe watenpipe discharging into the bowl, and another branch opening out of said pipe upward and then turning downward and discharging around theI discharge end of the 1o siphon to exhaust the air therefrom, substantially as set forth.

8. In combination with the bowl, its evacuating-siphon, and the service-box, the waterpipe supplied with water from the box at two 15 levels, and insufficiently to fill it at the lower level, and having two branches, the one which is first supplied with water from the main pipe leading to the bowl, and the other,which takes the remaining water only, discharging around the mouth of the pSiphon, substantially as set forth.

9. In combination with the bowl, its evacuating-si phon, a water-pipe discharging around PATRICK HARVEY.

Attest:

CHAs. S. BURTON, FRANCIS W. PARKER, 

